Electromechanical selector unit

ABSTRACT

This invention relates generally to an automatic phonograph, and more particularly to a control apparatus for selecting a predetermined record or a predetermined series of records from a record storage magazine in which a large number of records are stored. A series of selector pins or levers is arranged in an arc, and a moving electromagnet acts on selected pins corresponding to selected records to move and set the pins while the electro magnet is moving.

[ 11 Sept. 12, 1972 ELECTROMECHANICAL SELECTOR 12/1958Acker..........................274/1O 5/1964 Osborn etal................l94/l5 6/1963 Tuttle et al. ..............274/10.l

UNIT

' [72] Inventors: Frank B. Lumney, 623 Brighton Rd., Tonawanda, N.Y.14150;

Primary Examiner-Leonard Forman Ronald P. Eberhardt, 30 Cotton- I woodDr., Amherst, NY. 14226 [73] Ass'ignee: The Wurlitzer Company, Chicago,

Assistant Examiner-Steven L. Stephan Attorney-Olson, Trexler, Wolters &Bushnell [57] ABSTRACT This invention relates generally to an automatic[22] Filed: March 1, 1967 [2]] App No 619 686 phonograph, and moreparticularly to a control apparatus for selecting a predetennined recordor a predetermined series of records from a record storage .274/10Dmagazine in which a large number of records are .Gllb 17/22 tored. 10;194/ 51 Int.

[58] Field Of Search ...274/l0.l 15; 340/162 A series of selector pinsor levers is arranged in an are,

R f and a moving electromagnet acts on selected pins core arenas C'ted Iresponding to selected records to move and set the UNITED STATES PATENTSpins while the electro magnet is moving. 0

S e r. u g .17 F g n .l W a f- 4, 2 2a m M C 1 R 000 N 4M4 777 222 Lnwma u t. u" e m e n mam dka nCr. aou VRD 072 656 999 111 Ill 9004 370 6000,3 2400 v 40n 22 3 Patented Sept. 12, 1972 3,690,680

10 Sheets-Sheet l Patented Sept. 12,.1972 I 3,690,680

10 Sheets-Sheet S Patented Sept. 12, .1972

10 Sheets-Sheet 4 aye Patented Sept. 12, 1972 10 Sheets-Sheet 5 PatentedSept. 12, 1972 3,690,680

10 Sheets-Sheet 6 Pmmd Sept. 12, 1972 10 Sheets-Sheet '7 Mala/fizz?Patented Sept. 12, 1972 10 Sheets-Sheet 8 Patented Sept. 12, 19723,690,680

1Q Sheets-Sheet 9 v BY L.P.RELAY Patented Sept. 12, 1972 10 Sheets-Sheetl0 ELECTROMECHANICAL SELECTOR UNIT Automatic phonographs commonlyinclude a record magazine in which a large number of records are stored.A plurality of keys or switches are usually provided for selecting 'aparticular record for playing on the phonograph. By actuating the keyassociated .with a selected record, control apparatus is energized toposition the selected recordfor playing by the phonograph. The prior artcontrol apparatus commonly includes a selector unit. The selector unitgenerally includes a plurality of pin members which are moved from anormal position to a projecting position to signal the selection of aparticular record associated with the pin.

In order to move a pin from the normal position to the projecting or,signalling position, a complex arrangement of relatively movablesolenoids is provided in many of the selector units used in automaticphonographs. These prior art selector units, typified by the structuredisclosed in US. Pat. No. 3,050,309, use a first group of solenoids toindex a second group of solenoids and a plurality of actuator leversrelative to the pin members. One of the solenoids in the second group isthen operated to move the associated actuator lever into movingengagement with a pin member associated with the selected record. Thepin member is then moved from thenormal position to the projecting position tosignal the selection of the record associated with thepin member.

The aforementioned prior art selector units have proven to be reliablein service even though they are relatively complex. However, when anautomatic phonograph fails to operate, the proprietor of a commercialestablishment loses money and his customers become dissatisfied and goto other establishments. Therefore, reliability is a paramountconsideration in the construction of an automatic phonograph. The needfor reliability is heightened by the fact that automatic phonographs areused incommercial-establishments which are widely dispersedgeographically relative to each other. The wide geographic dispersion ofthe automatic phonographs makes the rapid servicing of a phonographwhich fails in service difficult if not impossible.

Since automatic phonographs are commonly used in commercialestablishments having a large number of customers, the phonograph mustbe able to accept and store or remember the record selections of severalcustomers while the record selection of a previous customer is beingplayed. Thus, the selector unit must operate quickly and efficiently tomove pin members from the normal position to the projected position. Therelatively complex arrangement of solenoids and actuator levers used inprior art selector units limits the speed of operation of the selectorunit and the number of record selections which can be made within agiven time period.

Therefore, it is an object of this invention to provide a reliable,rapidly operating, control apparatus for use with an automaticphonograph.

Another object of this invention is to provide a selector unit which isrelatively inexpensive and easy to manufacture.

Another object of this invention is to provide a selector unit which hasrelatively few moving parts.

Another object of this invention is to provide a compact selector unitwhich can be readily installed in an automatic phonograph.

FIG. 3 is an enlarged fragmentary sectional view illustrating therelationship of the record storage 'rnagazine of the record changerassembly of FIG. 1 to an electromechanical selector unit which forms apreferred embodiment of-the invention;

FIG. 4 is an enlarged perspective view of an accumulator having aplurality of readout pin members which are used with the selector unitof FIG. 3, and an actuator assembly for moving the pin members from afirst normal position to a second outwardly projecting signalingposition;

FIG. 5 is an enlarged plan view illustrating'the relationship of theactuator assembly to the pin members of FIG. 4;

FIG. 6 is an enlarged sectional view illustrating the normal position ofa pinmember associated with a first or A side of a record;

FIG. 7 is an enlarged perspective view illustrating the position of apin member intermediate the normal position shown in FIG. 6, and anoutwardly projecting signaling position;

FIG. 8 is an enlarged perspective view of a pin member, similar to thepin members of FIGS. 6 and 7, illustrating the orientation of a pinmember in the outwardly projecting or signalingposition;

FIG. 9 is an enlarged view illustrating the normal position of a pinmember associated with asecond or B side of a record; t.

, FIG. 10 is an enlarged plan view of a sensor assembly used in therecord selector unit of FIG. 3;

FIG. 11 is an enlarged sectional view, taken along the line 11-11 ofFIG. 10, illustrating the mounting of the sensor assembly;

FIG. l2 is an enlarged fragmentary plan view illustrating therelationship of the sensor unit 'of FIG. 10 relative to the pin members;v

FIG. 13 is an enlarged plan view illustrating the mounting and driveassembly for the record storage magazine of FIG. 1; t

FIG. 14 is an enlarged elevational view taken along the line 1414 ofFIG. 13 illustrating the relationship of a record magazine latchassembly to the record magazine;

FIG. 15 (on sheet 4 of the drawings) is an enlarged elevational viewillustrating the relationship of a pin member return assembly to the pinmembers;

FIG. 16 is an enlarged plan view illustrating the relationship of thesensor assembly to a predetermined counter unit, shown in anend-of-count position, which counts the revolutions of the sensorassembly relative to the pin members;

FIG. 17 is an enlarged plan view illustrating the counter unit of FIG.16, in a beginning count position, before the sensor unit has rotatedfor a predetermined number of revolutions relative to the pin members;

FIG. 18 is an enlarged plan view of a contact support panel or surfaceused in the selector unit of FIG. 3;

FIG. 19 is an elevational view of movable or wiper contacts which engagethe fixed contacts of the contact panel of FIG. 18;

FIG. 20 is an enlarged sectional view, taken along the line 20-20 ofFIG. 19, illustrating the structure of a moving contact;

FIG. 21 is an enlarged sectional view, taken along the line 21-21 ofFIG. 19, illustrating a second moving contact structure; and

FIGS. 22, 23 and 24 are schematic illustrations of control circuitryutilized with the record change assembly of FIG. 1, withFIG. 22illustrating latching cir cuitry, FIG. 23 illustrating a selectorcircuitry and the contact panel of the selector unit, and FIG. 24illustrating circuitry for controlling the movements of the recordmagazine, record changer assembly, turntable, and tone arm.

' RECORD CHANGER ASSEMBLY Referring now to the drawings in greaterdetail, FIGS. 1 and 2 illustrate a record changer assembly 30. Therecord changer assembly includes a base or support structure or frame 32upon which a record storage magazine or basket 34 is mounted. The recordstorage magazine. or basket 34 includes a plurality of panels 36 whichare positioned in a generally circular or toroidal configuration todefinea plurality of record storage 10- cations in which records 38 arestored or filed when they are not being played. The records 38 are ofthe disk type and have a spiral groove on each side of the recordcarrying recorded sound for reproduction by a phonograph. Since there isa recording on both sides of the records, the records are said to have afirst or A side 42 and a second or B" side 44. The A sides 42 arepositioned facing in a clockwise direction when the record magazine 34is viewed from above, while the B side 44 faces in an opposite orcounterclockwise direction. The'record storage magazine 34 is rotatablerelative to the base 32 to position a selected record for engagement bythe record transfer assembly 46. The record transfer assembly '46engages a record at a pickup or loading station 50 and transfers therecord from the record storage magazine 34 to a turntable 52. Theturntable 52 is rotated by a turntable drive motor 56 to rotate therecord relative to a tone arm 60. The tone arm 60 engages the spiralrecording groove in the upwardly facing or selected side of a selectedrecord on the turntable 52 to pick up the recorded sound on the 'recordin a well known manner.

After the record has been played, the record transfer assembly 46repositions the record back in its storage location in the recordmagazine 34. The movements of the record transfer assembly 46, theturntable 52, and the tone arm 60 are coordinated by a control mechanism64. The record changer assembly 30 is described in further detail incopending application Ser. No. 619,687, Changer and Selector Mechanism,filed in the names of Fred H. Osborne, Robert S. Tuttle, and Michael J.Corbett. Although the record changer assembly disclosed in theaforementioned application is preferred for use in connection with theelectromechanical selector unit forming the present invention, it willbe apparent to those skilled in the art that other known record changerassemblies can be utilized rather than the preferred record changerassembly 30.

SELECTOR UNIT GENERALLY A selector unit forming a preferred embodimentof the invention is illustrated in FIG. 3. The selector unit 70 ismounted on the base 32 immediately beneath the record magazine 34 in acoaxial relationship with the record storage magazine. The selector unit70 includes an accumulator or selection storage section 74 which issupported by a frame 76 from the base 32. The accumulator 74 includes aplurality of readout or selector protuberances or pin members 80 whichare movable from a first normal position to a second signaling orreadout position to signal the selectionof a record. The pin members 80are moved from the first position to the second position by an actuatorassembly'82. The actuator assembly 82 includes a radially outwardlyextending arm 84 having a pair of mounting sections 86 and 88 which arebest seen in FIG. 4. A pair of electromagnets 90 and 92 are secured tothe mounting sections 86 and 88. When the electromagnets 90 and 92 areenergized, a magnetic field emanates from the electromagnetsto-influence the pins 80. In'the preferred embodiment the electromagnetsattract the pins 80 to disengage the pins 80 from a combination supportand retaining frame 94 on which they are mounted to enable the pins tomove from the first normalposition to the second outwardly projectingsignaling position.

Referring again to FIG. 3, the electromagnets 90 and 92 are energized bymeans of electrical current or energy conducted from circuitry connectedto afixed contact support plate or surface panel 100. Fixed contacts onthe panel are engaged by a plurality of moving contact arms or wipers102 which are connected to second insulating support plates 104. Thecontact arms 102 are connected to the electromagnets 90 and 92 toconduct electrical energy from the contact panel 100 to theelectromagnets to energize the electromagnets. It should be noted thatthe electromagnets 90 and 92 are positioned in a spaced apartrelationship relative to the pins 80. This spaced apart relationshipbetween the electromagnets 90 and 92 and the pins 80 eliminates frictionwhich would tend to impede therotation of the actuator arm 84 around acentral axis 106 of both the selector unit 70 and the record storagemagazine 3 4 and enables the electromagnets 90 and 92 to be energizedwhile the actuator arm 84 is in motion relative to the pins 80.

In addition to an accumulator 74 and an actuator assembly 82, theselector unit 70 includes a combination sensor and return assembly 110which is mounted for rotation about the central axis 106 independentlyof the rotation of the actuator arm 84 about the central axis 106. Thecombination sensor and return assembly 1 10 is mounted on a sensor arm114 and includes a pair of spaced apart switches 116 and 118 which haveswitch arms 120 and 122 for sensibly engaging the pin members 80. Theswitch arm 120 engages pin members 80 which are associated with the Aside of the record in the record storage magazine 34 to sense when the Aside of a record is to be played. Conversely, the switch arm 122 fromthe switch 118 engages pin members 80 which are associated with the Bside of records in the record storage magazine 34. The switch arms 120and 122 are moved by the rotation of the sensor arm 114 about thecentral axis 106 into abutting sensing engagement with the pin members80 which are in the outwardly projecting signaling position. When eitherof the sensing switches 116 or 118 is actuated by sensible engagementwith a pin member 80 control circuitry (illustrated in FIG. 24) isenergized to enable the record changer assembly 30 to move a selectedrecord from the recordstorage magazine 34 into position for playing of aturntable 52. After the sensing switches 116 and 118 have been actuated,the pin members are returned to their normal position by a pin memberreturn assembly 126.

The actuator arm 84 is fixedly connected to a central shaft 132 which isdriven by a motor 134 through a transmission or gear drive 136 and thespur gears 138 and 139. The actuator arm 84 is mounted for clockwiserotation, when viewed from above, relative to the accumulator 74 on abearing 142. A conventional one-way clutch structure 144 is mountedimmediately adjacent to the bearing 142. When the actuator drive motor134 is energized, the electromagnets 90 and 92 are rotated about thecentral axis 106 on the shaft 132. As the electromagnets 90 and 92 arerotated about the central axis 106, they travel on a generally annularcourse in a position spaced apart from but adjacent to the pin member80. When either the electromagnet .90 or the electromagnet 92 isadjacent to a pin member associated with a selected side of a selectedrecord, the elec- The bracket or arm 158 includes on outwardly extendingdrive pin 160 which engages a central mounting member 162 of the recordstorage magazine 34. The central mounting member 162 is rotated relativeto the base structure 32 by a record magazine drive motor 166 which isbest seen in FIG. 13. A gear drive 168 transmits the rotation of a driveshaft from the motor 166 to an annular ring gear 170 which is fixedlyconnected to a base plate 172 of the record magazine 34. S Ince thebracket or arm 158 fixedly engages the record magazine 34 and is fixedlyconnected to the shaft 150, the shaft 150 and arm 114 are rotatedcontemporaneously with the rotation of the record magazine 34. Theaccumulator 74 is fixedly mounted relative to the record transferassembly 46 of FIG. 1. The sensor arm 114 and-sensing switches 116 and118 are fixedly mounted relative to the record magazine 34. Therefore,the record magazine 34 and sensor arm 114 are rotated as a unit relativeto the accumulator 74. The actuator arm 84, on the other hand, rotatesrelative to the accumulator 74 independently of both the record magazine34 and the sensor arm 114 to move a pin 80 from a normal position to anoutwardly projecting signaling position. By mounting the record magazine34, the sensor arm 114, the actuator arm 84, and the accumulator 74 in acoaxial relationship about the central axis 106, a relatively compactstructure is obtained for controlling the positioning of the recordmagazine 34 relative to the record transfer mechanism 46.

In view of the preceding remarks, it will be apparent that the selectorunit includes an accumulator 74 which is fixedly supported by the basestructure 32. An actuator assembly 82 is mounted for rotation by themotor 134 relative to the accumulator 74. When either electromagnet 90or92 is adjacent to a pin member associated with a selected side of aselected record, the .electromagnet is energized over a. circuitincluding the contact arms 102 and fixed contacts on the contact panel100. Energization of an electromagnet moves the pin member 80, which isadjacent to the energized electromagnet, from a first normal position toa second signaling position. When one of the pins 80 is in the secondsignaling position, it is located for engagement by one of two sensorswitches 116 or 118 which are rotated independently of the actuatorassembly 82 relative to the pins 80 on an arm 114. Actuation of eitherof the two sensing switches 116 and 118 energizes control circuitry tomove the selected record which is associated with the pin 80 from therecord storage magazine 34to the turntable 52 where it is played. Afterthe sensing switches1l6 and! 118 have been actuated by the pin member 80associated with the selected record, the pin member is returned to itsnormal position by a pin member return assembly 126 which is mounted onthe arm 114 intermediate the two sensing switches 116 and 118. I

ACCUMULATOR AND ACTUATOR ASSEMBLIES Turning now to a consideration ofFIG. 4, the pins 80 are positioned on the frame 94 of the accumulator 74in a generally annular configuration. The pin members are positioned onradii of the annular frame 94 with their longitudinal axes extendingupwardly in a generally parallel relationship. The actuator assembly 82,as previously explained, is mounted for rotation around the central axis106 of the accumulator 74. As the actuator assembly 82 is rotated aroundthe central axis 106, the electromagnets and 92 are moved on a generallyannular course radially inwardly of the pin members 80. If desired, theelectromagnets 90 and 92 can be positioned radially outwardly of the pinmembers 80. It should be noted that theannular course followed by theelectromagnets 90 and 92 is concentric with the annular configuration ofthe pin members 80. On each half revolution of the actuator assembly 82around the central axis 106, the electromagnet 92 is moved along asemicircular path past one-half of the pin members 80 while the oppositeelectromagnet 90 is moved on a semicircular path past the other one-halfof the pin members 80. In this manner an electromagnet 90 or 92 is movedpast each pin member 80 on each one-half revolution of the actuatorassembly 82. The provision of a pair of electromagnets 90 and 92 foractuating the pin members .80 enables the speed of rotation of theactuator assembly 82 to be half of the rate of rotation of an actuatorhaving a single electromagnet while maintaining the same rate ofactuation of the. pin members 80. Thus, the provision of twoelectromagnets 90 and 92 for actuating the pin members 80 doubles theeffective rate of rotation of the actuator assembly 82 about the centralaxis 106.

Referring now to FIG. 5, taken in connection with FIGS. 6 through 8,when the electromagnet 90 is energized, a coil or winding induces amagnetic field in 7 a generally U-shaped core piece 182 which is perhapsbest seen in FIG. 3. The magnetic field emanates from leg sections ofthe core piece 182 to attract the pin member 80 which is adjacent to thecore piece 182 when the electromagnet is energized (see FIG. Themagnetic field draws the pin members 80 toward the core piece 182 fromthe normal position shown in FIG. 6 to an intermediate position shown inFIG. 7. When the pin member 80 moves from the position shown in FIG. 6to the position shown in FIG. 7 under the in- I fluence of the magneticfields emanating from the core piece 182, a latching or retainingsurface 184 is moved out of abutting engagement with an annular latchplate 186 of the frame 94 and the pin member is released for verticalmovement from the position shown in FIG. 7 to the signaling positionshown in FIG. 8 under the urging of a spring 188. This upward movementof the pin 80 results in a sliding of the pin relative to both anannular upper support plate 190 and the lower support plate 186 throughapertures or slots 192 and 194 in the support plates 186 and 190; As thepin member 80 moves upwardly, a lower latching or retaining surface 198engages the lower support plate or latching plate 186 to retain the pinmember in the signaling position shown in FIG. 8. It should be notedthat the outwardly projecting latching or retaining surface 198 cannotbe drawn through the aperture 194 so that the pin member 80 cannot,under the urging of the spring 188 become disengaged from the frame 94.Thus, when the electromagnet 90 is deenergized, the pin member 80assumes the signaling or outwardly projecting position shown in FIG. 8.

The pin members 80 are divided into two groups, that is, a first group204 associated with the A side 42 of the record 38 and a second group206 associated with the B side 44 of the record 38 (see FIG. 4). The pinmember 80 shown in FIGS. 6 through 8 is associated with the A side ofthe record 38 and has therefore been designated 204. When a pin memberassociated with the first'or A side group 204 is in the signalingposition shown in FIG. 8 the pin member engages the switch arm 120 ofthe A side sensing switch 116 to signal the control circuitry (shown inFIG. 24) that the A side of a record has been selected for playing. Itshould be noted that when the pin member 80 is in the normal positionshown in FIG. 6, the pin member is spaced below the switch arms 120 and122 so that the sensing switches 116 and 118 are not actuated as thesensor arm 114 is rotated around a central axis 106 of the selector unit70 (see FIG. 3).

A pin member 80 associated with the second or B" side group 206 isillustrated in FIG. 9 and has accordingly been designated 206. The pinmember is shown in the outwardly projecting signaling position whichcorresponds to the signaling position for the pin member 80 of the Aside group 204, as shown in FIG. 8. It should be noted that when the pinmembers of the second group 206 are in the signaling position,illustrated in FIG. 9, the pin members engage the switch arm 122associated with the B sides 44 of the records 38.

From a comparison of FIGS. 8 and 9 it will be apparent that the pinmembers 80 of the first group 204 include a notch or recess 210 in theirupper outer end portions which enables the pin members 204 to clear theswitch arm 122 associated with the B" side of the records 38 when thepin member is in the signaling position shown in FIG. 8. Similarly, thepin members of the second group 206 have a notch or recess 212 in theirupper outer end portion for clearing the switch arm 120 associated withthe A side ,of the records when the pin members are in the signalingposition shown in FIG. 9. Of course, the pin members 80 of both thefirst and second groups 204 and 206 are positioned beneath or inwardlyof the switch arms 120 and 122 when the pin members are in the normalposition.

In view of the foregoing remarks it will be apparent that the selectorunit includes an accumulator 74 having a plurality of pins which aremoved from a normal position, shown in FIG. 6, to an outwardlyprojecting signaling position, shown in FIGS. 8 and 9, by the actuatorassembly 82. The pins 80 are divided into two groups, that is, a firstgroup 204 associated with the A side of a record and a second group 206associated with the B side of a record. The pins of the first group' areinterspersed with the pins of the. second group so that a pin member ofone groupis flanked on both sides by a pin member of the other group(see FIG. 4). The pin members80 are moved from the normal position shownin FIG. 6 to the signaling position shown in FIG. 8 by energizing one oftwo electromagnets and 92 as they are moved past the pin members 80.When the electromagnets are energized, a magnetic field emanates fromthe core piece of the electromagnet to attract the pin members anddisengage a latching surface 184 of the pin members from the latching orsupport plate 186 (see FIG. 7). Once the latching surface 184 has beendisengaged from the latch plate 186 the pin member is free to movevertically upwardly under the urging of the spring 188 to the signalingposition shown in FIG. 8. g

The pin members associated with the first group 204 and the A side 42 ofthe records 38 are sensibly engaged by the switch arm when the sensorarm' 114 is rotated relative to the accumulator 74. Similarly, the pinmembers associated with the second group 206 and the'B side 44 of therecordsaresensibly engaged by the switch arm 122 when the sensor arm 114is rotated relative to the central axis 106. Since the sensor arm 1 14is fixedly connected to the record magazine 34, the sensor arm isrotated contemporaneously with the record magazines so that the sensingswitches 116 and 118 are actuated by a pin member 80 which is in thesignaling position when the record associated with the pin member is inthe loading or pick-up position 50 (see FIG. 2) adjacent to the recordtransfer assembly 46. The sensing switches 116 and 118 actuate thecontrol circuitry of FIG. 24 to operate the record transfer assembly 46to move a record from the record storage magazine 34 into playingposition on the turntable 52. The records are positioned on theturntable 52 with the side associated with a pin member which actuatedthe sensor switch positioned upwardly. Thus, if a pin member of thefirst or A side group 204 actuated the switch arm 120 to operate therecord transfer assembly 46, the record transfer assembly would positionthe record on the turntable 52 with the A side 42 of the record facingupwardly for engagement with the tone on the turntable 52 (with the 8"side 44 of the record upwardly for engagement by the tone arm 60.

SENSOR ASSEMBLY The mounting of the sensor arm 114 on the shaft 150 isdisclosed in detail in FIGS. 10 and 11. The sensor arm rotates in aclockwise direction, as viewed from above in FIG. 10, about the shaft150 asindicated by the arrow 210. A contact support plate or surface 212is mounted on the base structure 32 by a plurality of connector bolts orrivets 214. A plurality of annular contact rings 216 are mounted on thecontact plate 212. The fixed contact rings 216 are engaged by aplurality of moving contact arms or wipers 220 (see FIGS. 3 and 11) witha separate moving contact or wiper 220 being provided for each of thecontact rings 216. An inner contact ring 222 connects a 24-volt a.c.source to the sensing switches 116 and 118 and the pin member returnassembly 126. When the sensing switch 1.16 is actuatedby sensiblecontact with a pin member 80, a circuit is completed over the contactring 224 to the control circuitry of FIG. 24. When the switch 1 18 isactuated by sensible engagement with a pin member 80, a circuit iscompleted over the contact ring 226 to the control circuitry of FIG. 24.Contact rings 227 and 228 are provided for energization of the pinmember return assembly 126.

The interrelationship between the pin members 80 and the switch arms 120and 122 of the sensing switchs 116 and 118 is further illustrated inFIG. 12. It should be noted that in FIG. 12 only the upper, outermostend of the pin members 80 have been shown. It is these upper, outermostends of the pin members which engage the switch arms 120 and 122. Thus,the upper, outermost end portion of a pin member of the first or A sidegroup 204 engages the switch arm 120 when the pin members are in thesignaling position shown in FIG. 8. Similarly, the upper, outermost endportion of the members of the second or B side group engage the switcharm 122 when the pin members are in a signaling position shown in FIG. 9to actuate the sensing switch 118. As the sensor arm 114 is rotated withthe record magazine 34 about the central axis 106 (see FIG. 3), thesensing switches 116 and 118 are actuated by any pin member of theassociated group which is in the signalling position. The position ofthe sensing switches 116 and 118 relative to the sensor arm 114 can bevaried by adjusting mounting assemblies 230 and 232. a

As was previously explained, the record magazine 34 is rotatedcontemporaneously with the sensor arm 114. As is perhaps best seen inFIG. 13, the record magazine 34 is rotated by the motor 166 through agear drive 168 which engages a ring gear 170 at the base of the recordmagazine 34. The records 38 are supported on a base plate 172 by aplurality of radially outwardly extending panels or side walls 36 whichdefine storage locations 238 for the records in the record magazine 34.The details of the structure of the record magazine do not, per se, forma part of the present invention, and it is not believed to be necessaryto go further into the structure of the record magazine 34 at this time.However, for those who are interested, the structure of the recordmagazine 34 is set forth in considerable detail in copendingapplication, Ser. No. 619,687, Changer and Selector Mechanism, filed inthe names of Fred H. Osborne, Robert S. Tuttle, and Michael J. Corbett.For purposes of the present invention it is sufiicient to note that thebase plate 172 is rotated contemporaneously with the positioning arm 114until one of the sensing switches 116 or 118 is actuated by a pin member80 which is located in the outwardly extending signaling position. Whenthis occurs, a record associated with the pin member 80 is in thepick-up or loading position 50.

When either of the sensing switches 116 or 118 is actuated by a pinmember, the record magazine drive motor 166 is deenergized and a latchassembly 242 is released to enable a latch bar to pivot about a mountingpin 246 to engage an index tooth or notch 248 in the outer periphery ofthe base plate 172. When the latch bar 244 engages a notch 248, the baseplate 172 is locked against further movement relative to the basestructure 32. The records 38 are positioned in filing locations so thatwhen a pin member associated with a given record actuates a switch armof either the sensing switch 116 or 118 the associated record ispositioned in the pick-up or loading position indicated at 50 in FIG. 1.The latch bar 244 remains in engagement with a a tooth '248 of the baseplate 172 until after the selected record has been played on theturntable 52 and returned-to its storage location in the record magazine34.

Referring now to FIG. 13 taken in connection with FIG. 14, the latchassembly 242 includes a latching solenoid 250 which is energized todisengage an upstanding pin 252 on the latch bar 244 from the teeth ornotches 248 to enable the record magazine to be rotated relative to thebase structure 32. When the latch bar 244 is in the locking or latchingposition shown in FIG. 13, a switch 254 is in its normally openposition. However, when the solenoid 250 is energized to disengage theupstanding pin 252 from the tooth or notch 248, the switch 254 is closedby an engagement of the latch bar 244 with an outwardly extending switcharm 256 of the switch 254. The switch 254 is connected to a circuit forenergizing the record storage magazine drive motor l66 so that therecord magazine can be driven only when the switch 254 is closed and thelatch bar 244 is disengaged from the teeth 248 in the base plate 172.

PIN MEMBER RETURN ASSEMBLY Referring now to FIG. 15, taken inconjunction with FIGS. 3 and 12, the pin member return assembly 126includes a pair of pin member return solenoids or actuators 260 and 262.The solenoid 260 is associated 227 of FIG. 10 to move the pin memberwhich actuated the switch arm to the normal or retracted position.Similarly after the switch arm 122 has been actuated by a pin member ofthe second or B side group 206, the solenoid 262 is energized throughthe contact ring 228 of FIG. to return the pin member to its normal orretracted position. The solenoids 260 and 262 return the pin members 80to their normal positions by pressing the pin members downwardly againstthe springs 188 with pin member return bars or fingers 264 and 266 whichare forced outwardly and downwardly relative to the solenoids 260 and262 when the solenoids are energized.

The solenoids 260 and 262 are offset relative to each other, as shown inFlG. 12, so that the pin member return bar engages only the pin members80 of the first or A side group, while the pin member return bar 266will engage only the pin members of the second or B side group 206. Thepin members 80 of both the first group 204 and the second group 206include a stop surface 270, which is best seen in FIGS. 3 and 6, forengaging a stop plate 272 of the frame 94. The engagement of the stopsurface 270 with the stop plate 272 limits the downward movement of thepin members 80 under the influence of the solenoids 260 and 262. Thus,the pin members 80 are returned from the outwardly projecting signalingposition shown in FIGS. 8 and 9 to the normal position shown in FIG. 6by the'action of the solenoids 260 and 262 after the pin members aresensibly engaged by either the switch arm 120 or 122.

The record magazine 34 and the sensor arm 114 are locked in a stationaryposition by the latch assembly 242 while a record is being played. Thus,the sensor arm 114 is immediately above the pin member 80 which is justsensibly engaged by either the switch arm 120 or the switch arm 122, thepin member having been returned to the normal position by the pin memberreturn assembly 126. While the selected record is being played on theturntable 52, it is possible, and even probable, that another record maybe selected for playing immediately after the record presently beingplayed. If the pin member associated with the second record isimmediately behind the sensor arm 114, the sensor arm can return to itsnormal position without engaging the pin member associated with therecord which had just been selected. Therefore, each time a record isselected, the sensor arm 114 is rotated for a plurality of revolutions(in the preferred embodiment two) relative to the pin members 80. Thecounter assembly 280, illustrated in FIGS. 16 and 17, is provided forcounting the revolutions of the sensor arm 114 relative to theaccumulator 74. The counter assembly 280 is shown in FIG. 16 in anend-of-count position before a record has been selected.

The counter 280 includes a register or counter member or plate 282 whichis rotatably mounted on a central axis 284. The counter plate 282 isretained in the position shown in FIG. 16, holding a switch 286 open, bymeans of a latch pawl 288 which is pivotally mounted on a pin 290. Thelatch pawl 288 engages latch or latching teeth 292 to hold the counterplate 282 in the end-of-count position shown against the urging of aspring 294. When a record is selected, a counter reset electromagnet 300is energized to attract the pawl 288 and pivot the pawl out ofengagement with the teeth 292. The spring 294 can then pull the counterplate 282 from the end-of-count position shown in FIG. 16 to a beginningor start-of-count position shown in FIG. 17, with the switch 286 closed.As the sensor arm 114 is rotated relative to the counter assembly 280,an outwardly extending lever 304 engages a pin member 306 which isconnected to a drive lever 308 of the counter assembly 280. The drivelever 308 is pivoted around the central axis 284 to rotate a drive pawl310 clockwise into engagement with a drive surface 312 of a first drivetooth 314. The drive pawl 310 is now positioned intermediate the firstdrive tooth 314 and a second drive tooth 316. On the next revolution ofthe sensor arm 114 the outwardly projecting lever 304 engages the pin306 to again actuate the drive lever and pivot the drive pawl 310 in aclockwise direction so that the drive pawl engages a driving surface 318of the tooth 316 to rotate the counter plate 282 into the endof-countposition shown in FIG. 16 under the influence of the return spring 320.Although only two drive teeth 314 and 316 have been provided on thecounter plate 282, it will be apparent to those skilled in the art thatany number of drive teeth can be provided on the counter plate 282 toprovide any desired number of revolutions of the sensor arm 114 relativeto theaccumulator 74 each time a record. is selected. It is merelynecessary that the counter unit 280. act as a predetermined counter tocount a predetermined number of revolutions of the sensor arm 114relative to the accumulator 74. This insures that all of the pin memberswhich are moved from the normal position to the signaling position areengagedby the switch arms 120 or 122 to play allof the selected records.

ACcUMULATOR CONTACT ASSEMBLY Referring now to FIG. 18, a partial planview of the contact support panel 100 is illustrated. The panel 100 isformed on an insulating material and has a generally circular shape. Afirst group of contacts 330 are mounted in an annular configuration on aradially outer section of the panel 100. Each of the contacts 330 isassociated with a pin member 80. Of course, the contacts 330 are alsoassociated with the record storage locations 238 in a record storagemagazine 34, since the pin members are associated with the recordstorage locations.

Just as there are two pin members 80 associated with each record storagelocation, that is, a pin member of the first or A side group 204 and apin member of the second or B" side group 206, there are two contacts330 associated with each record storage location 238, that is, a firstcontact associated with the A side of a record in a record storagelocation and a second contact associated with the B side of a record ina record storage location 238. In addition, the contacts 330 are alsoassociated with a second group of contacts 334 which are mounted on thepanel 100. There are twenty contacts 330 associated with each of theradially inwardly positioned contacts 334. By designating the contacts330 with letter indicia and the contacts 334 with numerical indicia, itis possible to reference each of the plurality of storage locations inthe record storage magazine 34 by a number and letter designation, suchas A-l, B-l, C-l, D-l A-2, B-2, C-2, D-2 A-3, B- 3, C-3, D-3 etc. Ofcourse, the number of contacts 330 and 334 varies with the capacity ofthe record storage magazine 34. The capacity of a record storagemagazine is limited by space considerations and the necessity of keepingthe record changer assembly 30 relatively compact. In one preferredembodiment of the invention a record storage magazine having 80 storagelocations is provided. The storage cations are divided into eight numbergroups associated with eight contacts 334 on the panel 100 and 160letter contacts 330 which are divided into subgroups of 20 cgiitactsassociated with each of the number contacts 3 I As previously indicated,a plurality of mounting panels 104 are mounted on the actuator arm 84(see FIG. 3). A plurality of contacts 102 project downwardly from thepanel 104, as shown in FIG. 19, to engage the contacts mounted onthepanel 100. A first pair of moving contacts 340 and 342 projectdownwardly from the panel 104 to engage the fixed contacts 330 on thepanel 100. Similarly, a second pair of contacts 344 and 346 projectdownwardly from the panel 104 to engage the contacts 334 on the panel100. The contactor arms or wipers 342 and 346 are con: nected to theelectromagnet 90 while the contactor arms 340 and 344 are connected tothe electromagnet 92 (see FIG. 4). Thus the electromagnet 90 isenergized while in motion by a circuit extending from a fixed contact330 on the panel 100, through the movable contactor arm 342 and to thecoil 180 of the electromagnet and back to the movable contactor arm 346to a fixed contact 334 on the panel 100. Similarly, the electromagnet 92is energized by a circuitextending from a fixed contact 330 on the panel100, through the movable contactor arm 340 to the electromagnet, andback through the movable contactor arm 344 to a fixed contact 334 on thepanel 100. As will be explained in greater detail subsequently, when asound recording on a side of a record in the record storage magazine 34is selected for playing, a circuit is momentarily completed through theletter contact 330 and the number contact 334 associated with theselected side of the record to energize one of the moving electromagnets90 or 92 to move a pin member 80 from the normal position of FIG. 6 tothe signaling position of either FIG. 8 or 9. Since each side of therecord in the record magazine 34 is associated with one and only onecombination of the letter contacts 330 and the number contacts 334,either the A or the B" side of any record in a record storage magazinecan be selected for playing by energizing the actuator assembly 82 tomove a pin member 80 corresponding to the selected side of the selectedrecord.

Referring again to FIG. 18, a plurality of contacts 350 are positionedradially inwardly of the contacts 334. There are eight contacts 350arranged in a semicircular configuration about the central axis 106 orthe panel 100. An elongated semicircular shaped contact 352 ispositioned radially inwardly and ad jacent to the contacts 350. Acircuit between the two contacts 350 and 352 is completed by means ofmoving contacts 353, 356, 358, and 360 which are mounted on the panels104. The completed circuit between the contacts 354, 356, 358, and 360pulses a credit cancelling mechanism in a manner to be explained ingreater detail subsequently. A pair of semicircular contacts 366 and 368are positioned radially inwardly of the contact 352. The contacts 366and 368 are engaged by a single moving contact 370 which is mounted onone of the panels 104. A fixed circular contact 372 is positionedradially inwardly of the contacts 366 and 368 on the panel 100 and isengaged by a single contact 374 in the panel 104. Since a pair ofelectromagnets and 92 are provided for actuating the pin members 80 fromthe initial or normal position to the signaling position, it is onlynecessary for the actuator arm 82 to rotate for half a revolution oneach cycling of the selector unit 70 to enable the electromagnets toactuate any pin member in the accumulator 74. Therefore, thesemicircular contacts 366 and 368 are provided to signal when theactuator arm 82 has reached a home or initial position with thecontactor arm 370 engaging the insulating panel at either of two initialor home areas 378 or 380.

The structure of the contactor arms 340 and 354 is set forth in greaterdetail in FIGS. 20 and 21. The contactor arm 340 includes abody section384 which is positioned at an acute angle to the mounting plate 104.Extending downwardly in a substantially vertical direction from the bodysection 284 is an operating or contact engaging section 386which engagesthe fixed contact 330. Since the contact engaging section 386 of thecontactor arms 340 extends upwardly in a substantially perpendicularrelationshipwith the fixed contact 330, any wear of the contact engagingsection 386 of the contactor arm 340 results in.axrelatively constantend area positioned in sliding engagement with" the fixed contacts 330.

Referring now to FIG. 21 in which the contactor arm 354 is shown, it canbe seen that the contactor arm 354 includes a body section 390 to whicha contact engaging protuberance 392 is connected. Since the protuberance392 has a varying'cross-sectional area, when the contact 392 is worndown due to sliding engagement with the panel 100 and the contact 350,the area of engagement between the contactor arm 390 and the contact 350will vary. Since the contacts 350 are spaced a relatively wide distanceapart, the variation in the cross-sectional area of the protuberance 392does not affect the accuracy of the contactor arms 254 in engaging thecontacts 350. However, the contacts 330 and 334 are spaced a relativelysmall distance apart so that any substantial variation in thecross-sectional area of the contact engaging section 386 of the contacts340 or 344 could result in the contact arms'engaging two adjacentcontacts. Therefore, it is highly advantageous to have thecross-sectional area of the contact engaging sections of the movablecontacts 340 and 344 remain relatively constant as the contacts areworn.

CONTROL CIRCUITRY Referring now to FIGS. 22, 23, and 24, in whichcontrol circuitry for the automatic record changer assembly 30 is setforth, the circuitry includes a latching or set-up circuit 400 which isshown in FIG. 22. The latching circuit 400 is connected by leads to aselector circuit 402 and the selector unit 70 which is shown in FIG. 23.The selector circuit and selector unit of FIG. 23 are connected tocontrol circuitry 404 (see FIG. 24) for controlling the operation of therecord changer assembly 30. The control circuitry of FIG. 24 is alsoconnected to the latching or set up circuitry 400 of FIG. 22. Since thecircuitry of FIGS. 22, 23, and 24 is interconnected it is suggested, tofacilitate the readers understanding of the invention, that FIGS. 22,23, and 24 be aligned to interconnect the circuitry. To do this,

FIG. 23 is positioned with its longitudinal axis extending outwardlyaway from the reader, while FIGS. 22 and 24 are positioned with theirlongitudinal axes extending perpendicular to the longitudinal axis ofFIG. 23, FIG. 22 being positioned adjacent to the lower portion of FIG.23 and FIG. 24 being positioned adjacent to the upper portion of FIG. 23so that the leads interconnecting the circuitry for the two figures arein substantial alignment.

The latching circuit 400, of FIG. 22, is connected to a suitable coinreceiving mechanism and controls the operation of the selector circuit402 of FIG. 23. The selector circuit 402 includes a plurality of letterselector switches and number selector switches for selecting a record ina record magazine 34 which is associated with the selector switches in apredetermined code arrangement. The letter and number selector switchesare connected to the selector unit 70, in the manner previouslyexplained, to read or put information into the selector unit 70corresponding to the selected record; that'is, the letter and numbercontacts corresponding to the selected record are energized by theletter and number selector switches. The selector unit is in turnconnected to the control circuitry 404 of FIG. 24 to control theoperation of the record changer assembly. Although it is intended thatthe selector unit 70, the selector circuitry 402, and the latchingcircuitry 400 will be used with the record changer assembly set forth inapplication, Ser. No. 619,687, filed in the name of Fred H. Osborne,Robert S. Tuttle and Michael .I. Corbett, it will be apparent tothoseskilled in the art that other record changer assemblies of knownconstruction can be used. 5

To select a single record for playing, a coin of a suitable denominationin one embodiment, a dime is inserted in a coin receiving apparatus ofknown construction. The coin receiving apparatus includes a coinregister mechanism, not shown, which functions to receive coins,register credits in a positive direction in accordance with thedenomination of the coins received, reject coins while registration isin progress, and to cancel registered credits by actuating the registerin a negative direction after a record selection has been made. Coinreceiving mechanisms which perform the above-functions are well known tothose skilled in the art and need not be described in greater detail atthis time. Those who are interested in the details of the structure ofthe coin receiving mechanisms are referred to U.S. Pat. No. 3,131,000.

The registration of the depositing of a coin in the coin receivingapparatus closes a key switch 410 in the latching circuit 400. Theclosing of the key switch 410 energizes a latch solenoid 412 in thelatching circuit 400 to release letter selector switches 41 4 and numberselector switches 416 in the selector circuitry 402. To energize thelatch solenoid 412, a set-up relay 418 is energized by a circuitextending form a 28-volt power line '420 connected through normally madecontacts 422 of a stop relay and leads 424 and 426 to the set-up relay418. The circuit for energizing the set-up relay 418 is completed over alead 428 to the key switch 410 and through a lead 430 to a ground line432. It should be noted that although the key switch 410 is normallyopen, as shown, the key switch 410 is closed by the placing of a coin inthe coin receiving mechanism.

Once the set-up relay 418 has been energized through the above circuit,the set-up relay 418 is locked in an energized condition over its ownnormally open contacts 434 which are connected to the ground 432 by alead 436.

The energization of the set-up relay 418 closes a circuit to energizethe latch solenoid 412. As previously explained, the energizing of thelatch solenoid 412 releases the letter and number selector switches 414and 416 of the selector circuitry 401 to enable a recording on a recordassociated with the letter and number selector switches to be selectedfor playing. The circuit for energizing the latch solenoid 412 extendsfrom the power line 420 over a lead 440 to the normally open contacts442 of the set-up relay, the contacts 442 having been closed by theenergization of the set-up relay 418. The circuit extends from thecontacts 442 of the set-up relay to leads 444 and 446 to normally closedupper contacts 448 of a top tune relay. The circuit is continued fromthe contacts 448' by leads 450 and 452 to normally closed contacts 454of the latch solenoid 412. The latch solenoid is in turn connected tothe normally closed conta'cts454 by .a lead 456. The circuit forenergizing the latch solenoid 412 is completed in the ground line 432through the letter selector switches 414 to the selector circuitry 402in FIG. 23. This circuit includes a lead 458 which connects the latchsolenoid 412 to a lead 460 and the normally closed contact 462 of aselection release switch. The selection release switch 462 is connectedby a lead 464 to the normally closed contacts 466 of a LP relay. Thecontacts 466 arejconnected by a lead 470 to the letter selector switchesof FIG. 23. The lead 470 is connected in a chain circuit by LPconditioning switches 472 and a lead 474 to the ground line 432 tocomplete the circuit for energizing the latch solenoid 412.

Energization of the latch solenoid 412 opens the upper contacts 454 andcloses lower contacts 475 to complete a circuit through a lead 476 andnormally closed LP relay contacts 478 to energize a single-play light480 through the leads 482 and 484 which connect to the ground line 432.Of course, the single play light 480 is connected to the battery line420 from the contacts 475 through the leads 452, 450, switch contacts448, leads 446, 444, switch contacts 442, and the lead 440. The latchsolenoid 412 is retained in an energized condition, after the normallyclosed contacts 454 have opened and the normally open contacts 475closed, over a circuit including a resistor 488. The resistor 488 limitsthe current through the latch solenoid 412 to a value which isinadequate to initially actuate the latch solenoid but is adequate toretain the actuated latch solenoid 412 in an actuated condition.

The energizing or actuating of the latch solenoid 412 and single playlight 480 releases the letter selector switches 414 and number selectorswitches 416 to enable a selection to be made, as indicated by thesingle play light 480, by actuating letter switches 414 and numberselector switches 416 which are associated with a record. Assuming, forexample, that a recording A2 is selected, a pair of selector switches492, which are associated with letter A record storage locations and areganged together, are moved fromv the position shown in solid lines inFIG. 23 to the position shown in dashed lines in FIG. 23. The closing ofthe switches 492 connects ground from the lien 432 over the normallyopen contacts 494 of the now energized latch solenoid 412 to the A lead496 throughleads 498 and 500. The lead 496 is wired in common with allof the contacts 330 associated with the letter A on the selector unit70. Thus the A contact of all eight number groups is connected to groundby the actuationof the switch 492. It should be noted that the leadsdesignated B through V are also connected in common with theirassociated letter contacts 330 in the selector unit 70. Thus the V leaddesignated B in FIG. 23 is-connected to all of the 13 contactsassociated with the number group contacts 1 through 8. The C through Vleads are also connected'in common with their associated letter contacts330 of each of the number groups 1 through 8.

The number associated with the selected record is now actuated byoperating one of the number selector switches 416. In our example therecord A-2 was chosen. Thus, a switch 504 would be closed to connect thenumber 2 selector switch to the power line 420 through :the number 1selector switch which is in its normal position and normally. closedcontacts 506 of the top tunes relay which isconnected to the'number lselector switch by a lead 508. The contacts 506 are connecteddirectly tothe power line 420. The number 2 contact 334 in the selector unit 70 isnow connected to the power line 420 through a circuit which includes aswitch 504. Of course, the other selector switch leads designated 1 and3 through 8 in FIG. 23 are connected to the associated number groupcontacts 334'in the selector unit 70.

In view of the preceding remarks it is apparent that placing of a coinof a predetermined amount in a coin receiving unit, not shown, closes akey switch 410 to energize a set-up relay 418. Energizing of the set-uprelay 418 energizes the latch solenoid 412 to enable selector switches:414 and number selector switches 416 to be actuated to select a recordassociated with a predetermined combination of the letter and numberselector switches. When a record is selected by actuat ing the letterand number selector switches 414 and 416 associated with the selectedrecord, the contacts 330 of the letter which is associated with theselected record are connected to ground and the number contact 334 whichis associated with the selected record is connected to a source of powerby actuating a number selector switch 416. The actuation of a letterselector switch 414 closes letter latch switches 530 and 531 in thelatching circuit 400. Similarly, the actuation of a number selectorswitch 416 closes number latch switches 532 and 533 in the latchingcircuitry 400. It should be noted that the number and letter latchswitches 530 through 533 are closed by a mechanical interconnectionbetween these latch switches and the keys for the letter and numberselector switches 414 and 416. The closing of the latch switches 530 and532 energizes the start relay 534 through normally open contacts 536 ofthe now energized set-up relay 418.

The circuitfor energizing the start relay 534 extends from the powerline 420 through a lead 540 to the letter and number latch switches 530and 532 to a lead 542 which is connected to the start relay 534. Thecircuit for energizing the start relay 534 is completed over a lead 544which is connected to the contact 536 of the set-up relay and a lead 546which interconnects the contacts 536 of the set-up relay and the groundline 432. The energizing of the start relay closes normally opencontacts 550,(see FIG. 23) to energize the actuator drive motor 134. Theactuator drive motor 134 is energized from a 24-volt source of powerthrough a lead 552 which is connected to the motor and leads 554 and 556which connect the motor to the contacts 550 of the start relay 534. Thecontacts 550are connected by leads 557, 558, and 559 to the ground line432 to complete the circuit for energizing the actuator drive motor 134.

The energization of the actuator drive motor 134 causes the actuatorassembly 82 (see FIG. 3)'t0 rotate relative to the contact support plateor panel 100 of the selector unit 70. As is perhaps best seen in FIGS.18 and 19, when the actuator drive motor. l34.is energized, the actuatorassembly '82 and the contact support plates. 104, which areconne-cted'to. the actuator bar 84, are moved relative to the contactsupport plate 100 from "the initial positions indicated at 378 and 380in a clockwise direction to move the contact arms extending from thepanels 104 relative to the fixed contacts'on the panel 100.This-movement ofthe contact 370 to move into engagement with either thesegment 366 or the segment 368 of the end of cycle contacts. Theengagement of the moving contact 370 with either contacts 366 or 368energizes a stop relay 560 through a circuit extending from FIG. 23 toFIGS. 24 and 22.

The stop relay 560 of FIG. 24 is connected by a lead 562 to the powerline 420 in FIG. 22. The circuit for energizing the stop relay 560 iscompleted by a lead 564 which extends from FIG. 24 to FIG. 23 where itis connected to an end-of-cycle contact segment 368. The end-of-cyclecontact segment 368 is connected by a lead 566 to the opposite end-ofcycle segment 366. When the actuator drive motor 134 is energized, themoving contact 370 engages one of the two end-ofcycle segments and isshorted by a. lead 568 to moving contact 374 which engages the radiallyinnermost contact ring 372 which is connected to the ground line 432 bya lead 570. Thus, the stop relay 560 is energized immediately after theactuator assembly 82 leaves the initial or home positions 378 and 380 bya circuit extending from the ground line 432 through the central ringcontact 372 to one of the two end-of-cycle segment contacts 366.0r 368to a source of power on the line Energization of a stop relay 560releases the set-up relay 418 which had previously been energizedthrough the normally closed contacts 422 of the stop relay (see FIG.22). When the set-up relay 418 is deenergized, the start relay 534,which had previously been energized through the normally open contacts536 of the set-up relay, is deenergized. The actuator drive motor 134,which had previously been energized over the contacts 550 of the startrelay, is now held energized over contacts 572 of the stop relay. Thedeenergization of the set-up relay 418 opens contacts 442 over which thelatch solenoid 412 was initially energized. However, the latch solenoid412 is retained in an energized state (after the set-up relay 418 isdeenergized and the stop

1. A selector assembly for an automatic phonograph comprising: a basemeans, a plurality of elongated magnetically susceptible memberssupported by said base means in a circular array with the individualmembers substantially parallel to the axis of the circle and havingupper and lower ends and respectively corresponding to predeterminedstorage locations for a plurality of records, said magneticallysusceptible members being movable radially inwardly of said arrayrelative to said base means from a first position to a second position;and a magnetic actuator supported by said base means, said magneticactuator being movable relative to said magnetically susceptible membersin a path radially within said circular array spaced radially from saidmembers, said magnetic actuator comprising an electromagnet with agenerally U-shaped core having upper and lower legs respectively passingin close proximity to the upper and lower ends of said members, saidelectromagnet further having a coil thereon selectively energizablewhile said actuator is moving to move a magnetically susceptible membercorresponding to a predetermined record storage location radiallyinwardly of said array and from said first position to said secondposition by bringing the magnetically susceptible member within theinfluence of a magnetic field emanating from said magnetic actuatorwithout contact between said actuator and said members.
 2. An assemblyas set forth in claim 1 further including: sensor means mounted forsensing said member when said members are in said second position tosignal the position of a predetermined record storage location; and amember return means supported by said base means for moving said memberfrom said second position to said first position after said members havebeen sensed by said sensor means, said sensor means and said memberreturn means being mounted on an arm supported by said base means formovement relative to said members.
 3. An assembly as set forth in claim1 further including: a plurality of contact means supported by said basemeans and associated with both said record storage locations and saidmembers; and a contact arm mounted on said magnetic actuator forengaging said contact means to enable said magnetic actuator to beelectrically energized through circuitry including said contact arm anda contact means associated with a predetermined record storage locationto move a member associated with a predetermined record storage locationfrom said first position to said second position.
 4. An assembly as setforth in claim 3 further including: circuit means for transmittingelectricity to said magnetic actuator through a predetermined group ofsaid contact means when said contact arm engages a contact means of saidpredetermined group of contact means to move a predetermined pluralityof members associated with a predetermined group of records from saidfirst position to said second position.
 5. An assembly as set forth inclaim 1 further including: sensor means mounted for movement relative tosaid members while sensing said members when said members are moved fromsaid first position to signal the position of the predetermined recordstorage location; and a counter mechanism mounted for actuation by saidsensor means in each cycle of movement of said sensor means relative tosaid members, said sensor means being moved relative to said membersuntil said counter means has been actuated a predetermined number oftimes.
 6. An assembly as set forth in claim 5 wherein: said plurality ofmembers includes a plurality of pairs of metallic members, each of saidpairs of metallic members being corresponding to a record filinglocation and including a first member associated with a first side of arecord positioned in the associated filing location and a second memberassociated with a second side of a record positioned in the associatedfiling location; a first sensor means being mounted for sensing saidfirst member of the plurality of pairs of metallic members when saidfirst member is in said second position; a second sensor means beingmounted for sensing the second member of the plurality of pairs ofmetallic members when said second member is in said second position; afirst return means mounted for moving the first member of the pluralityof pairs of members from said second position to said first position;and a second return means mounted for moving the second member of theplurality of pairs of members from said second position to said firstposition, whereby said members are moved from said first position tosaid second position by said magnetic actuator and moved from saidsecond position to said first position by the associated return meansafter being sensed by the associated sensor means.
 7. An assembly as setforth in claim 1 further including: a first group of contacts supportedby said base means, each contact of said first group of contacts beingassociated with a plurality of said record storage locations; a secondgroup of contacts supported by said base means with each contact of saidsecond group being associated with a record storage location, saidsecond group of contacts being formed into a plurality of subgroups ofcontacts with each subgroup of contacts being associated with adifferent contact of said first group of contacts; a first contactor armconnected to said magnetic actuator and positioned for engaging saidfirst group of contacts; a second contactor arm connected to saidmagnetic actuator and positioned for engaging said second group ofcontacts; and control circuitry connected to said first and second groupof contacts to selectively energize said magnetic actuator through acircuit including a contact of said first group, a contact of thesub-group of contacts associated with the contacts of said first group,and said first and second contactor arms to move a member correspondingto a predetermined side of a predetermined record from said firstposition to said second position.
 8. An assembly as set forth in claim 1further including: a second magnetic actuator supported by said basemeans, said second magnetic actuator being selectively energizable tomove a member associated with a predetermined record storage locationfrom said first position to said second position by bringing the memberwithin the influence of a magnetic field emanating from said secondmagnetic actuator.
 9. An assembly as set forth in claim 1 and furthercomprising selector circuitry including selectively operable groupselector means for providing circuits for energizing said actuator tochange a predetermined group of said members from said first position tosaid second position, said predetermined group of said members beingassociated with a preselected group of records in a plurality ofpredetermined record storage locations, said circuits for energizingsaid actuator including at least one of the contacts of a firSt group offixed contacts, a plurality of the contacts of a second group of fixedcontacts, and first and second movable contactors.
 10. An assembly foruse in an automatic phonograph comprising: a base means; a plurality ofmembers supported by said base means and respectively corresponding to aplurality of predetermined record storage locations in a recordmagazine; an actuator supported by said base means, said actuator beingenergizable to change a selected member from a first condition to asecond condition; a first group of fixed contacts supported by said basemeans, each contact of said first group of fixed contacts beingassociated with a plurality of said members; a second group of fixedcontacts supported by said base means, each contact of said second groupof fixed contacts being associated with one of said members; a firstmovable contactor connected to said actuator and positioned for movingengagement with said first group of fixed contacts; a second movablecontactor connected to said actuator and positioned for movingengagement with said second group of fixed contacts; and selectorcircuitry connected to said first and second group of fixed contacts,said selector circuitry being selectively operable to provide a circuitfor energizing said actuator to change a member from said firstcondition to said second condition when said actuator is adjacent to amember associated with a selected record in a predetermined recordstorage location, said circuit for energizing said actuator including acontact of said first group of fixed contacts, a contact of said secondgroup of fixed contacts associated with the member associated with theselected record, and said first and second movable contactors, saidselector circuitry including selectively operable group selector meansfor providing circuits for energizing said actuator to change apredetermined group of said members from said first position to saidsecond position, said predetermined group of said members beingassociated with a preselected group of records in a plurality ofpredetermined record storage locations, said circuits for energizingsaid actuator including a plurality of the contacts of a first group offixed contacts corresponding to said group of members, a correspondingnumber of the contacts of a second group of fixed contacts, and saidfirst and second movable contactors, said selector circuitry including aplurality of group selector means for providing a plurality of circuitsfor energizing said actuator to change a plurality of predeterminedgroups of said members from said first condition to said secondcondition, each of said predetermined groups of said members beingassociated with a preselected group of records in a plurality ofpredetermined record storage locations, each circuit of said pluralityof circuits for energizing said actuator including at least one of thecontacts of said first group of fixed contacts, a plurality of thecontacts of said second group of fixed contacts, and said first andsecond movable contactors; and said selector circuitry further includingswitch means for selecting one of said plurality of group selector meansto provide a selected circuit of said plurality of circuits forenergizing said actuator to change a selected group of said plurality ofpredetermined groups of said members from said first condition to saidsecond condition, said selected group of said plurality of predeterminedgroups of members being associated with a selected group of records. 11.An assembly for use in an automatic phonograph comprising: a base means;a plurality of members supported by said base means and respectivelycorresponding to a plurality of predetermined record storage locationsin a record magazine; an actuator supported by said base means, saidactuator being energizable to change a selected member from a firstcondition to a second condition; a first group of fixed contactssupported by said base means, each contact of said first group of fixedcontacts being aSsociated with a plurality of said members; a secondgroup of fixed contacts supported by said base means, each contact ofsaid second group of fixed contacts being associated with one of saidmembers; a first movable contactor connected to said actuator andpositioned for moving engagement with said first group of fixedcontacts; a second movable contactor connected to said actuator andpositioned for moving engagement with said second group of fixedcontacts; and selector circuitry connected to said first and secondgroup of fixed contacts, said selector circuitry being selectivelyoperable to provide a circuit for energizing said actuator to change amember from said first condition to said second condition when saidactuator is adjacent to a member associated with a selected record in apredetermined record storage location, said circuit for energizing saidactuator including a contact of said first group of fixed contacts, acontact of said second group of fixed contacts associated with themember associated with the selected record, and said first and secondmovable contactors, said selector circuitry including selectivelyoperable group selector means for providing circuits for energizing saidactuator to change a predetermined group of said members from said firstposition to said second position, said predetermined group of saidmembers being associated with a preselected group of records in aplurality of predetermined record storage locations, said circuits forenergizing said actuator including a plurality of the contacts of afirst group of fixed contacts corresponding to said group of members, acorresponding number of the contacts of a second group of fixedcontacts, and said first and second movable contactors, said selectorcircuitry including a plurality of group selector means for providing aplurality of circuits for energizing said actuator to change a pluralityof predetermined groups of said members from said first condition tosaid second condition, each of said predetermined groups of said membersbeing associated with a preselected group of records in a plurality ofpredetermined record storage locations, each circuit of said pluralityof circuits for energizing said actuator including at least one of thecontacts of said first group of fixed contacts, a plurality of thecontacts of said second group of fixed contacts and said first andsecond movable contactors, and said selector circuitry further includingswitch means for selecting one of said plurality of group selector meansto provide a selected circuit of said plurality of circuits forenergizing said actuator to change a selected group of said plurality ofpredetermined groups of said members from said first condition to saidsecond condition, said selected group of said plurality of predeterminedgroups being associated with a selected group of records; a third groupof fixed contacts supported by said base means; and a third movablecontactor mounted for moving contemporaneously with said first andsecond movable contactors and in engagement with said third group offixed contacts; money receiving means connected to said selectorcircuitry and to said third group of contacts for controlling theoperation of the automatic phonograph, said money receiving meansincluding a register means which is actuated in a positive direction inaccordance with the value of the money inserted into the money receivingmeans, said register means being actuated in a negative direction by theenergization of circuitry interconnecting said money receiving means andsaid third group of contacts.